.tutorial-hero {
  position: relative;
  overflow: hidden;
}

.tutorial-hero::after {
  position: absolute;
  top: 12%;
  right: -10%;
  width: 48%;
  height: 76%;
  border: 1px dashed var(--color-ink-18);
  border-radius: var(--radius-large);
  content: "";
  pointer-events: none;
  transform: rotate(-4deg);
}

.tutorial-hero__layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, .75fr);
  align-items: center;
  gap: 72px;
  padding-top: 82px;
  padding-bottom: 82px;
}

.tutorial-hero__copy h1 {
  max-width: 760px;
  color: var(--color-ink-96);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.06;
}

.tutorial-hero__lead {
  max-width: 700px;
  color: var(--color-ink-82);
  font-size: 17px;
}

.tutorial-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.tutorial-facts span {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--color-ink-28);
  border-radius: var(--radius-pill);
  color: var(--color-ink-70);
  font-family: var(--font-mono);
  font-size: 12px;
}

.tutorial-facts span::before {
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
}

.tutorial-route {
  border: 1.5px solid var(--color-accent);
  border-radius: var(--radius-large);
  background: var(--color-deep);
  color: var(--color-ink-82);
}

.tutorial-route__bar {
  display: flex;
  min-height: 50px;
  align-items: center;
  gap: 7px;
  padding-inline: 18px;
  border-bottom: 1px solid var(--color-ink-28);
}

.tutorial-route__dot {
  width: 9px;
  height: 9px;
  flex-shrink: 0;
  border: 1px solid var(--color-ink-82);
  border-radius: 50%;
}

.tutorial-route__title {
  margin-left: 8px;
  color: var(--color-ink-70);
  font-family: var(--font-mono);
  font-size: 12px;
}

.tutorial-route__list {
  margin: 0;
  padding: 20px 24px 24px;
  list-style: none;
}

.tutorial-route__list li {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 15px 0;
}

.tutorial-route__list li:not(:last-child)::after {
  position: absolute;
  bottom: -7px;
  left: 20px;
  width: 1px;
  height: 14px;
  background: var(--color-ink-28);
  content: "";
}

.tutorial-route__number {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-ink-40);
  border-radius: 50%;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
}

.tutorial-route__list strong {
  display: block;
  color: var(--color-ink-96);
  font-family: var(--font-mono);
  font-size: 14px;
}

.tutorial-route__list small {
  display: block;
  margin-top: 3px;
  color: var(--color-ink-70);
  font-size: 13px;
}

.tutorial-intro {
  color: var(--color-muted);
  font-size: 16px;
}

.tutorial-preflight {
  background: var(--color-panel);
}

.preflight-grid,
.platform-notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 32px;
}

.preflight-grid .card p,
.platform-notes .card p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.step-chip {
  display: inline-flex;
  max-width: 100%;
  margin-bottom: 14px;
  padding: 4px 10px;
  border: 1px solid var(--color-link);
  border-radius: var(--radius-pill);
  background: var(--color-link-soft);
  color: var(--color-link);
  font-family: var(--font-mono);
  font-size: 11px;
}

.tutorial-step {
  scroll-margin-top: 72px;
}

.tutorial-step--soft {
  background: var(--color-panel);
}

.tutorial-step__layout {
  display: grid;
  grid-template-columns: 150px minmax(0, 860px);
  justify-content: center;
  gap: 56px;
}

.tutorial-step__rail {
  position: relative;
  display: flex;
  min-height: 190px;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.tutorial-step__rail::after {
  width: 1px;
  min-height: 112px;
  flex: 1 1 auto;
  background: var(--color-border);
  content: "";
}

.tutorial-step__index {
  display: inline-flex;
  width: 72px;
  height: 72px;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-accent-dark);
  border-radius: 50%;
  background: var(--color-page);
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
}

.tutorial-step__label {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  writing-mode: vertical-rl;
}

.tutorial-step__body {
  min-width: 0;
}

.tutorial-step__body > h2 {
  scroll-margin-top: 90px;
}

.tutorial-step__body > h3 {
  margin-top: 38px;
}

.tutorial-checkpoint {
  margin: 30px 0;
  padding: 24px 26px;
  border: 1px solid var(--color-accent-dark);
  border-radius: var(--radius-medium);
  background: var(--color-accent-soft);
}

.tutorial-checkpoint h3 {
  margin-bottom: 10px;
  font-size: 19px;
}

.tutorial-checkpoint ul {
  margin-bottom: 0;
}

.mode-map {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 32px 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-border);
}

.mode-map article {
  padding: 24px;
  background: var(--color-page);
}

.mode-map code {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--color-link);
  font-size: 13px;
}

.mode-map h3 {
  font-size: 19px;
}

.mode-map p {
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.verify-sequence {
  display: grid;
  gap: 12px;
  margin: 32px 0;
}

.verify-sequence > div {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-page);
}

.verify-sequence span {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-deep);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 12px;
}

.verify-sequence p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.verify-sequence strong {
  color: var(--color-text);
}

.tutorial-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 30px;
  margin-top: 44px;
  padding: 30px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-panel);
}

.tutorial-next h3 {
  margin-top: 8px;
}

.tutorial-next p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.tutorial-next__code {
  color: var(--color-link);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
}

.tutorial-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (max-width: 980px) {
  .tutorial-hero__layout {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .tutorial-route {
    max-width: 680px;
  }

  .tutorial-step__layout {
    grid-template-columns: 100px minmax(0, 1fr);
    gap: 34px;
  }

  .mode-map {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .tutorial-hero::after {
    display: none;
  }

  .tutorial-hero__layout {
    padding-top: 58px;
    padding-bottom: 58px;
  }

  .tutorial-step__layout {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .tutorial-step__rail {
    min-height: 0;
    flex-direction: row;
    justify-content: flex-start;
  }

  .tutorial-step__rail::after {
    width: auto;
    min-width: 60px;
    min-height: 1px;
    flex: 0 1 140px;
  }

  .tutorial-step__index {
    width: 58px;
    height: 58px;
  }

  .tutorial-step__label {
    writing-mode: horizontal-tb;
  }

  .preflight-grid,
  .platform-notes,
  .tutorial-next {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .tutorial-hero__copy h1 {
    font-size: 34px;
  }

  .tutorial-route__list {
    padding-inline: 18px;
  }

  .tutorial-route__list li {
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 12px;
  }

  .tutorial-route__number {
    width: 38px;
    height: 38px;
  }

  .tutorial-checkpoint,
  .tutorial-next {
    padding: 22px;
  }

  .tutorial-next__actions {
    align-items: stretch;
  }

  .tutorial-next__actions .btn {
    width: 100%;
  }
}